Packing.



S, P, MORRISON (Q: VAN DOLAH MORRISON.

PACKING.

APPLlOATION FILED OCT. 25, 191Dv Patented Feb. 21, 1911 v /A/l/E/VTORSwk T/VE-SSES. 6%

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SEPTIldUS l. MORRISON, OF STUTIGA'RT, AEKANSAS, AND VAN DOE-AH MORRISQN,OF

IN'TDIANA POLIS, INDIANA.

PACKING.

To all whom it may concern:

Be it known that we, Snr'rmrrs l. Monmson, a citizen of the hintedZiiZIliJSJQSHlUlQ at Stuttgart, in the county of Arkansas and State ofArkansas. and VAN Donut lvl'onni- 6 son, a citizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented certain new and useful Improvements in Packing, of whichthe-following is a specification;

lhis invention relates to improvements in packing for pistons,stutfing-boxes, and for all mechanisms wherein an air. watt-r, o l,steam, ammonia, or gas-tight joint is desired around a reciprocating orrotary portion.

The invention belongs to the same class of packing as that patented toScptinuis l. Morrison, by United States Patent No. 926,676, issued June29, 1909, which packing, as experience has demonstrated, is inipracticable for p ston-rods and other sin'lilar shaft-like reciprocatingparts which. are apt to be sprung. or h'llllflHl or bent out ol'straight alinemen't, requiring the use of a more or less elastic packingHilbtittlllfl. which is capable of following, that is, 0'1 springing outWilli or otreccding before said i11'ipcrle tions in the reciprocatingrod. Also, the

. packing material of said Patent No. 9264376,

being COYDPI'QSSllJlC and non-elastic, is impra'ctlcable for use as a.paclung tor pistons in cylinders the bores of which have become 1 Worn,out of round, as so frequently occurs.

The object, oi thisqinvention is, therefore. to produce a packing whichshall have the lubricatit-carrying structure; the capacity .forcompression whereby, by lateral pres sure, it may be thickened indimensions at. right angles to said pressure to accurately fill its boxor cylinder; and all of the ad i utages of the invention of said. PatentNo. 926,676, with additional attributes, chici" among which is that ofelasticity.

In the accompanying drawings forming a parthereot, Figure l is anexterior view of a collection of granules joined together, showing theirirregular formation with innumerable cells existing l)(3l=\\'((.ll said:y'ranules. Fig. 2 is a highly magnified View in CIOSS-SQCUOII' of asingle granule disconnected from the mass, showing throughout its bodySpecification of Letters Patent.

i i l l i the forn'iation of innumerable con'nnnnieat-.

Patented Feb. 21, 1911.

Application filed October 25. I910. Serial No. 589.003.

ing cells containing the lubricant. Fig. 3 is a fragmentary view inelevation of a. por tion of a compressed ring formed out of a mass orthe granules, this view showing the exposcdcells elongated by theoperation of compressing the granules, and also showing the shreddedasbestos interwoven throughout the mass.

The body of the packing material comprises innumerable sniall irregulargranules, preferal'ily of substantially the same alloy, copper,antimony, in, etc.,of which Babbitt metal is 1nade,'sa-idgranules beingofirregular shape, and ragged, to increase the adhesion thereto ofshredded asbestos by which the granules will eventually be separated,the said granules having innumerable cells throughout their structureform ing receptacles for a lubricant, preferably graphite. Thesegranules, as stated, will be separated from each other preferably byshredded asbestos, the sutlieiently reduced fibers of? which adhererczulily to the ragged edges of the granules.

The i'nixing oi the granule with asbestos, oil. and graphite. may becarried forth in various ways. that is, one ingredient may be ini.\cdwith the mass before the other, but

,llle dwimhle way of mixing the several pails we have found issubstantially as follows: it sullicicnt number of granules to form apacking ring is first placed in a receptacle: to this mass shreddedasbestos is added. which is stirred until the two become llud'mlgjlliYmixed: :1 mixture of graphite with oil. wax. or the like, is thenapplied in the mass a l'u-r which the mass is heated 1 that as the airwithin the cells becomes heated and expands it escapes from the cells,

1 during Whh'h process the cells are filled by the inflow oi thelubricant, The mass is now in condition to form rings or packings to;di'lierent purposes. In case it is desired to form a pistonring. themass is distributed around a piston and when a .:la1nping-ring is placedin. position and pressure is a plied the mass is compressed and readiyshapes itself to conform to the contour of the adjacent walls, therebymaking a smooth and tight joint. As before stated, the metalstructure ofthe granules is compressible I 0 0 I 7 said rod, thus i'naintaining aconstant tight joint, and with equal facility it provides a tightpacking for pistons operating inoutot-rouud cylinders.

The packing here described has inherent elasticity to a slight degree byreason-of the asbestos, which makes the packing more adaptable to suerheated steam, and also for gas and gaso one engines wherein a hightemperature obtains.

()ur above described packing is sufliciently pliable to be usedon'movable brass rods and valve stems'wit hout danger of dating thebrass surfaces of said rods and stems.

We have here mentioned Babbittmetal, asbestos, and graphite, asillustrative materials, andas preferred ones so far as our experiencehas gone, butother materials may be substituted with good resultswithout departing from the spirit of our invention body in granules, anelastic mineral separate ing said granules, and a lubricant charging thecells of said metal-body.

3. As a new article of manufacture, a unitary elastic structurecomprising a eor'npres- Q sible non-elastic cellular poriferous 'metal-7 body in a plurality of divided granules, said granules said granules alubricantcharging the cells of'said metalbody. i i

In witness whereof, we have hereunto set our hands and seals.

sarrmus P. momu'sor. [1.. 5;] us norm MORRISON. a. 8-]

Witnesses to signature of S. P. Morrison: 1

N. H. Lnoocq, O. E. Puma.

Witnesses to signature of V. D. Morrison:

J. A. Mm'rtmx,

FRANK O. FrrroN.

50 aving sharp ragged edges, on elastic substance separatin and retainedby the edges 0 the latter, and

